diff --git a/pkgs/tools/networking/ddns-go/default.nix b/pkgs/tools/networking/ddns-go/default.nix
index f42da08c74d9..b70baf45f2c9 100644
--- a/pkgs/tools/networking/ddns-go/default.nix
+++ b/pkgs/tools/networking/ddns-go/default.nix
@@ -5,16 +5,16 @@
 
 buildGoModule rec {
   pname = "ddns-go";
-  version = "6.6.3";
+  version = "6.6.4";
 
   src = fetchFromGitHub {
     owner = "jeessy2";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-8818/SMDsViNIHImvbjk92Fm+JbfzrESG9J5rTJ2H18=";
+    hash = "sha256-1rYxZIfzRuVGVlQOkXERh7uQhnr6n2Lw3I9aH3kMlzg=";
   };
 
-  vendorHash = "sha256-N9qoJ0sfpIVasveYlfg2e3ZCL2mORhylanepazHCBWc=";
+  vendorHash = "sha256-XZii7gV3DmTunYyGYzt5xXhv/VpTPIoYKbW4LnmlAgs=";
 
   ldflags = [
     "-X main.version=${version}"